Introduction to Markov chain

Markov chain is based on a principle of “memorylessness”. In other words the next state of the process only depends on the previous state and not the sequence of states. This simple assumption makes the calculation of conditional probability easy and enables this algorithm to be applied in number of scenarios. In this article, we will restrict ourself to simple Markov chain. - from here

Frequentism and Bayesianism

A great reading: Frequentism and Bayesianism: Model Selection

INJOIT vol. 3, no. 8

International Journal of Open Information Technologies has just published its latest issue at http://injoit.org. We invite you to review the Table of Contents here and then visit our web site to review articles and items of interest.

International Journal of Open Information Technologies Vol 3, No 8 (2015)

Table of Contents

Applied mathematics

Intensification of search domain contraction in non-uniform covering method (1-7)

Modern programming issues

The case tool for software structure and metrics visualization in 3D space (8-16)

Telecommunication technologies and computer networks

On Model of Information System Based on push-notifications (17-29)
Control of transport routes via mobile phones (30-39)
On telecom services and the DISN evolution (40-47)

Big data and their applications

On Big Data Stream Processing (48-51)

Generalized Additive Models

A good reading - GAM: The Predictive Modeling Silver Bullet

Introduction to Monte-Carlo

The idea of Monte Carlo methods is this—generate some random samples for some random variable of interest, then use these samples to compute values you’re interested in.

On Mobile Wireless Tags

Namiot D., Sneps-Sneppe M. On mobile wireless tags // Automatic Control and Computer Sciences. — 2015. — Vol. 49, no. 3. — P. 159–166.

The subject of the article refers to services of mobile networks related to a context. We are examining the questions of the development of mobile services employing wireless tags. In addition to this, a new model of usage (application) of Core Bluetooth devices is offered. In our model Bluetooth devices act as tags and are used for reference (binding) and the subsequent context-dependent determination of data available to mobile users. Mobile phones, as well as already existing devices with Bluetooth support, can be used as such dynamic tags. In this case a single mobile application is sufficient for coverage of all stages of the life cycle of contextual services. The application provides a presentation of a tag (tags) and the binding of informational content to these tags, as well as the viewing of data bound to other tags. The possible application fields are applications for retail and service organizations and context-dependent services for Smart Cities. DOI

INJOIT - call for paper

The International Journal of Open Information Technologies (INJOIT) is an all-electronic journal with the aim to bring the most recent and unpublished research and development results in the area of information technologies to the scientific and technical societies. Free, peer reviewed papers. English or Russian languages. It is free to publish your paper.

The journal is published by the OIT Lab (Open Information Technologies Lab, Faculty of Computational Mathematics and Cybernetics, Lomonosov Moscow State University).

Indexing: Google Scholar, DOAJ, Ulrich's Periodicals Directory, ResearchBib, Elibrary.ru (RINC)

See also our archive

Memory leaks in JavaScript

Our new paper: Evgeniy Ilyushin, Dmitry Namiot "On JavaScript Memory Leaks". International Journal of Open Information Technologies 3.7 (2015): 27-31.

As soon as more and more the modern applications are deployed on the web, JavaScript has become a mainstream programming environment. JavaScript applications nowadays are big programming systems. We can mention here web portals, online games, graphics, media management, and even data science. Of course, the memory management is a very important problem, especially, for the dynamic programming languages. In this paper, we provide a survey of memory leaks patterns in JavaScript.

GeoInt 2015

We continue to share links for monitoring the interesting events in Twitter. Now it is GeoInt symposium, Washington, DC 2015

Twitter Live Feed: GeoInt Congress 2015

/via Bluetooth Data Points

Network Proximity in Web Applications

Our new paper: Dmitry Namiot, Manfred Sneps-Sneppe "On Network Proximity in Web Applications"

In this paper, we discuss one approach for development and deployment of web sites (web pages) devoted to the description of objects (events) with a precisely delineated geographic scope. This article describes the usage of context-aware programming models for web development. In our paper, we propose mechanisms to create mobile web applications which content links to some predefined geographic area. The accuracy of such a binding allows us to distinguish individual areas within the same indoor space. Target areas for such development are applications for Smart Cities and retail.

LBS Event

We continue to share links for monitoring the interesting events in Twitter. Now it is LBS Event, London 2015

Twitter Live Feed: LBS Event 2015

/via Bluetooth Data Points

Data Science Books

27 free Data Mining books

We would like one more: Statistics Done Wrong is a guide to the most popular statistical errors and slip-ups committed by scientists every day, in the lab and in peer-reviewed journals. Many of the errors are prevalent in vast swaths of the published literature, casting doubt on the findings of thousands of papers. Statistics Done Wrong assumes no prior knowledge of statistics, so you can read it before your first statistics course or after thirty years of scientific practice.

See here more free Data Science books

DSL for IoT

Our new paper: Manfred Sneps-Sneppe, Dmitry Namiot "On Web-based Domain-Specific Language for Internet of Things"

Signal Processing

Free books: Signal Processing

Signal Processing for Everyone

The Scientist and Engineer's Guide to Digital Signal Processing

Signals Tutorial

SEEING CIRCLES, SINES, AND SIGNALS

Digital Signal Processing for Computer Science

Geo-location for Telecom Operators

Our new paper: Dmitry Namiot, Manfred Sneps-Sneppe "On Geo Location Services for Telecom Operators"

This paper presents location based service for telecom providers. Most of the location-based services in the mobile networks are introduced and deployed by Internet companies. It leaves for telecom just the role of the data channel. Telecom providers should use their competitive advantages and offer own solutions. In this paper, we discuss the sharing location information via geo-messages. Geo messages let mobile users share location information as signatures to the standard messages (e.g., email, SMS). Rather than let some service constantly monitor (poll) the user location (as the most standalone services do) or share location info within any social circle (social network check-in, etc.) The Geo Messages approach lets users share location data on the peer to peer basis. Users can share own location info with any existing messaging systems. And messaging (e.g., SMS) is the traditional service for telecom.

Bluetooth Data Points

Our presentation for FRUCT conference. Bluetooth devices as mobile tags.

You can read the paper here.

On Probability

The Only Probability Cheatsheet You'll Ever Need. 8 pages about probability

Practical Neural Networks and Genetic Algorithms

A great book (free access): An Introduction to Practical Neural Networks and Genetic Algorithms For Engineers and Scientists

CEP

What is Complex Event processing

Statistics about Big Data

10 things statistics taught us about big data analysis. A great read.

Btw, if you need just one rule about data analysis, then it is very simple: "plot your data".